Patent EP0541443A1 successfully refreshed from Google Patents.
US2994004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed motor pump unit
Assignee: Westinghouse Electric Corp
•
Filing: 1958-02-19
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Granted: 1961-07-25
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Expires: 1978-02-19
Abstract
No abstract record available.
Inventors
- 👤 Edward A Macha
- 👤 Iii Oliver P Steele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:14
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/12; H02K5/128
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1448700A
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US1736002A
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US2075895A
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US2497650A
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US2618756A
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FR1049445A
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US2722616A
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FR1117513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |